Unlike the general databases, literature (or any subject) specific databases generally focus solely on journal articles as a publication type and do not have a broad, multidisciplinary approach.
General databases contain content from a variety of subject areas as well as a number of different publication types. They will allow you to look at your topic from a wide perspective.
Be sure to use the search refinements each database may offer, including: date, document type, and source type.
This usage works on most databases, but check 'Help' sections for supported search syntax.
art* (asterisk as truncation character) searches for art, arts, artistic, artful, etc.
m?n (question mark as wildcard character) searches for man and men.